Pugsley's Dead Reckoning, Including the Various Methods of Finding Course and Distance by Mercator and Middle Latitude Sailings: And Examination Specialty
R.M. Pugsley, 1916 - 176페이지
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add the logarithm adding applicant bearing boats Cape Cape Horn carry coastwise steam vessels column compass convert course and distance decimal departure deviation difference of latitude difference of longitude direction Dist divide east Enter Table examination EXAMPLE NUMBER experience feet Find the course Find the difference fishing gives the logarithm glass grade gross tons half inspection inspectors issued keep latitude and longitude latitude column leeway less license Long master mate mate of ocean meridional difference Middle lat miles and name navigation necessary noon officer person pilot point in latitude point left port position practice Prop proper difference PUGSLEY'S renewal result rules sail vessels Service ship ship has sailed ship's side signals starboard storm subtracted tack taken tang third tion white light wind